Improved machine foe planing and slotting



gleiten tates atrnt @ffice IMPROVED MACHINE FOR PLANING AND SLO'ITING.`

dige tlgctule ruimt It im Hirst trttcts guteit :nu mating niet nt tigre stun,

TO, ALL Wl-IOM IT MAY CONCERN Be it known that I, CHARLES A. MEINIIARD, of Fort Wayne, in the county of Allen, and State `of Indiana,

`have invented a new and improved ConibinedPlaning and Slotting-Machiuct and I do hereby declare that the` following is a full, clear, and exact description thereof, which will enableothcrs skilled in the art to make and use the same, reference being had to the accompanying drawings forming -part of this specification, in whichi Figure 1 represents a front view of my improved planing-machine. t Figure 2 is a vertical cross-section 4of the same.

Figure 3 is a detail front view of the plate for holding the`cutter of the slotting-machine. Similar letters of reference indicate like parts.

This invention relates to a new device, bywhieh a planing-machine can be quickly converted into a slotting-` machine, and vice versa, the said planing-machine being so arranged that it canpwork on level, tapering, or`

round convex or concave surfaces. The invention also relates to such a manner of arranging thecutter that the same cannot he injured during the return stroke.

A represents a stationary rectangular frame, which is arranged above the carriage of a planing-machine, so as to be firmly sustained in position. It is made of any suitable metal. B is a shaft, which has its bearings in the ends of the frame A, and which passes longitudinally through the same, as is clearly shown in iig; 1.

That portion of the shaft B which is between the ends of the frame A is provided with a screw-thread, as shown. C is a frame, which slides on the face of the frame A, and which has dove-tailedlips, a, which` fit around the corresponding sides of the frame A. A nut, b, is formed on the inner face of the frame `or plate C, and fits aroundthc screw B, so that by turning the screw the said plate C will be moved on the frame A in the desired' direction. On the outer face of the plate C is formed a circular T-shaped groove,e,'andconcentric with ,the same a circular projection, d. D is a solid Worm-wheel, which has a recess on its inner face, fitting over the projection d. Two bolts, e e, having T-shaped heads, are held in the wheel D, and t into the groove c to give proper `support and guidance to the said wheel. E is a shaft, hung in bearings in the framewi, and passing through two ears, fj', which project from the plate C. This shaft is, as shown, parallel with the shaft B. Between `the earsffis hung, on the shaft E, a sliding sleeve, F, which has a tongue or feather fitting a groove provided in the shaft, (as shown in iig. 2,) so that by turning the latter the sleeve will also be turned, and by` turning the shaft B the plate C will be moved, and will carry the slpeve F along on the shaft E. A screw-thread is` formed on the sleeve F, which meshes into the teeth on the wheel D, as shown, so that by turning the shaftE the wheel D will beturned in either direction. On the face of the wheel D is a dove-tail tenen, g, upon which a grooved i plate, G, slides.- A yoke, H, is xed to the disk D, and holds-a screw, I, which works in a nut, t, that is` arranged on the inner side of the plate G, as is clearly shown in iig. 2. Thus, by turning the screw I, the plate` G can be moved on the disk D, z'. e., the disk D may be so turned that the `plate G stands either in a vertical` Y' position, at right angles with the screw B, or in a horizontal position, parallel with the latter, or in an inclined position, and the screw I serves to draw the plate G more or less towards the yoke H. J is a plate, which is screwed upon the plate G, and from the face of which a tubular shak,`z', projects, in which the stem or tool-f holder K is held by means of a set-screw, j. L is the cutter, which is pivoted in 4a slot, arranged near the outef end of the stom K by means of a pin, Z, and which is made in the shape shown in fig. 2. A spring, m, is fitted in the slot, so as to press upon tho cutter in such a manner that it will hold thc same to its work, when the same is moving against the plate in the direction indicated by the arrow iu g. 2, while during the return znove'the` spring will allow the cutter to be lifted over any obstructions and inequalities of Vthe plate operated on. It will be seen that for 4the planing-maehine, the screw I serves `to adjust the cutter to thicker or thinner plates, up and down. The disk D serves t0 throw the cutter into an inclined position, and to adapt it to work on rounded sur .i

faces. The screw D serves to feed the cutter laterally to other parts of the work.` The feed-screw B can` be turned at the end of each stroke, also-thc shaft E when rounded work is to be planed. For adapting the machine to slotting-shafts, pulleys, Src., the plate J is removed, and a plate, J', (fig. 3,) arranged in its place, `which plate` i J has `a tubular shank, i', projecting from its lccntre, as shown, The plate Gis provided with a number'of holes, n n, for the screws by which the plates J or J are secured. These holes are so arranged that the said plates can be attached higher or lower, so that, especially in the slotting-machincs, `the position ofithe cutter can be adjusted to the height of the article to be slotted by the position of the plate J" and by the screw I. When only common planing is to be done, the shaft E is thrown out of gem altogether, so as not to turn the disk D.

What Lclaim as'new, and desire to secure by Letters Patent, is

1. The combination of worm-wheel D with the sliding adjustable plate C, and up-and-down adjustable plate G, all made, arranged, and operating:r substantially as and for the purpose herein shown and described.

2. The cutter L, when hinged in the slotted stem K, and connected with the spring m, substantially as and for the purpose herein shown and described.

3. The adjustable plates J or J', when provided with Shanks z' z', respectively, for holding the tool, and when combined with the upand-down adjustable plate G of a. planing-machine, substantially as set forth.

4.'The shafts B and E, worm F, plate C, disk D, and plate G, in combination with the plate J, (or J,) stom K, and cutter L, all made and operating as and for the purpose herein shown anddescribed. i

CHARLES A. MEI'NHARD.

Witnesses DANIEL RYAN, BERNARD WAGNER. 

